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4 years ago

13

What is the domain of the following parabola?

2 answers:

vitfil [10]4 years ago

5 0

The domain for all parabola is always all real numbers.

tia_tia [17]4 years ago

3 0

Answer:

The Answer is A: All real numbers

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Mahala is making a piece of jewelry that is in the shape of a right triangle. The two shorter sides of the piece of jewelry are

Digiron [165]

The two "shorter" sides are referring to the legs of the triangles, because the hypotenuse is the largest side. Looking at this, we can find that it's a 3-4-5 triangle, which means that the scaling factor is 3, because 9/3 =3, 12/3=4, meaning we multiply 5 by 3 to get 15.

7 0

4 years ago

How many triangles does a=6 b=10 A=33° create?

GaryK [48]

Answer:

2 triangles are possible.

Step-by-step explanation:

Given

a=6

b=10

$\angle$ A=33°

To find:

Number of triangles possible ?

Solution:

First of all, let us use the <em>sine rule</em>:

As per Sine Rule:

$\dfrac{a}{sinA}=\dfrac{b}{sinB}$

And let us find the angle B.

$\dfrac{6}{sin33}=\dfrac{10}{sinB}\\sinB = \dfrac{10}{6}\times sin33\\B =sin^{-1}(1.67 \times 0.545)\\B =sin^{-1}(0.9095) =65.44^\circ$

This value is in the 1st quadrant i.e. acute angle.

One more value for B is possible in the 2nd quadrant i.e. obtuse angle which is: 180 - 65.44 = $114.56^\circ$

For the value of $\angle B = 65.44^\circ$ , let us find $\angle C$ :

$\angle A+\angle B+\angle C = 180^\circ\\\Rightarrow 33+65.44+\angle C = 180\\\Rightarrow \angle C = 180-98.44 = 81.56^\circ$

Let us find side c using sine rule again:

$\dfrac{6}{sin33}=\dfrac{c}{sin81.56^\circ}\\\Rightarrow c = 11.02 \times sin81.56^\circ = 10.89$

So, one possible triangle is:

a = 6, b = 10, c = 10.89

$\angle$ A=33°, $\angle$ A=65.44°, $\angle$ C=81.56°

For the value of $\angle B =$ $114.56^\circ$ , let us find $\angle C$ :

$\angle A+\angle B+\angle C = 180^\circ\\\Rightarrow 33+114.56+\angle C = 180\\\Rightarrow \angle C = 180-147.56 = 32.44^\circ$

Let us find side c using sine rule again:

$\dfrac{6}{sin33}=\dfrac{c}{sin32.44^\circ}\\\Rightarrow c = 11.02 \times sin32.44^\circ = 5.91$

So, second possible triangle is:

a = 6, b = 10, c = 5.91

$\angle$ A=33°, $\angle$ A=114.56°, $\angle$ C=32.44°

So, answer is : 2 triangles are possible.

8 0

3 years ago

Match the three dimensional shape with the HORIZONTAL cross section shown.

Maksim231197 [3]

Square Shape - rectangular Pyramid, Rectangular Prism

Circle Shape - Cylinder, cone

Triangle Shape - Triangular Pyramid

Hope it helps! <span />

8 0

3 years ago

Can someone explain what i'm doing wrong? I'm so confused. Ahh!

Lady bird [3.3K]

You need to swap the x values around. They need to be given in the same order as the y values. The sum should be:

$slope = \frac{1 - - 5}{2 - -1}$

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3 years ago

Please help! Offering many points! Brainliest is you can explain to me how to solve this problem.

Mazyrski [523]

Answer:

Exact form: y=40/3

Decimal form: y=13.3

Mixed number form:

$13 \frac{1}{3}$

Hope this helps!

3 0

2 years ago

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